Chevy & GMC Duramax Diesel Parts

Chevy & GMC Duramax Diesel Parts

The Duramax has been GM's heavy-duty diesel since 2001, and each generation has its own needs. This collection shows every part we carry for Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L Duramax, LB7 and LLY through LBZ, LMM, LML and today's L5P.

Inside you'll find FASS lift pumps to protect the CP3 or CP4 injection pump, Fleece Performance fuel and turbo parts, S&B cold air intakes, Titan Turbos, Banks Power and BD Diesel upgrades. For the chassis and body there are Air Lift and Firestone air springs, Bodyguard bumpers, tonneau covers and Husky floor liners.

To narrow it down, open the Shop by Truck menu and pick your years: 2001-2005, 2006-2010, 2011-2016, 2017-2019 or 2020 and newer. Fitment notes on every product page list the exact cab, bed and model years.

We're based in Ropesville, just southwest of Lubbock, so West Texas truck owners can call (806) 503-2161 or stop by the shop. Give us a call before you order if you want a second opinion on what fits your Duramax.

Chevy & GMC Duramax Diesel Parts FAQ

Which Duramax engine is in my truck?

Chevy and GMC 2500HD/3500HD trucks used the LB7 (2001-2004), LLY (2004.5-2005), LBZ (2006-2007), LMM (2007.5-2010), LML (2011-2016) and L5P (2017 on). Shop by year range to see parts listed for your engine.

Are diesel performance parts emissions legal?

It depends on the part. Many diesel performance parts are sold for off-road or competition use only and are not legal on emissions-controlled vehicles driven on public roads. Check the product page and your state and federal rules before you buy.

How do I know a part fits my truck?

Each product page lists the vehicles it fits. If you are not sure, call (806) 503-2161 or use the contact form with your truck's year, make, model and engine, and we'll confirm fitment before you order.

Where is Black Diamond Unlimited located?

We're at 3623 US Highway 62, Ropesville, TX 79358, about 20 miles southwest of Lubbock. Call (806) 503-2161, Mon-Fri 8am-5pm CT. When local pickup shows as an option at checkout, you can pick up your order at the shop.

344 results